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#ifndef DOCUMENTHANDLER_H
#define DOCUMENTHANDLER_H

#include <QFont>
#include <QObject>
#include <QQuickTextDocument>
#include <QTextCursor>
#include <QTextDocument>
#include <QUrl>

#include "src/Comm/ShowMessage.h"

QT_BEGIN_NAMESPACE
// class QTextDocument;
// class QQuickTextDocument;
QT_END_NAMESPACE

class DocumentHandler : public QObject {
  Q_OBJECT

  Q_PROPERTY(QQuickTextDocument *document READ document WRITE setDocument NOTIFY
                 documentChanged)
  Q_PROPERTY(int cursorPosition READ cursorPosition WRITE setCursorPosition
                 NOTIFY cursorPositionChanged)
  Q_PROPERTY(int selectionStart READ selectionStart WRITE setSelectionStart
                 NOTIFY selectionStartChanged)
  Q_PROPERTY(int selectionEnd READ selectionEnd WRITE setSelectionEnd NOTIFY
                 selectionEndChanged)

  Q_PROPERTY(QColor textColor READ textColor WRITE setTextColor NOTIFY
                 textColorChanged)
  Q_PROPERTY(QString fontFamily READ fontFamily WRITE setFontFamily NOTIFY
                 fontFamilyChanged)
  Q_PROPERTY(Qt::Alignment alignment READ alignment WRITE setAlignment NOTIFY
                 alignmentChanged)

  Q_PROPERTY(bool bold READ bold WRITE setBold NOTIFY boldChanged)
  Q_PROPERTY(bool italic READ italic WRITE setItalic NOTIFY italicChanged)
  Q_PROPERTY(
      bool underline READ underline WRITE setUnderline NOTIFY underlineChanged)

  Q_PROPERTY(
      int fontSize READ fontSize WRITE setFontSize NOTIFY fontSizeChanged)

  Q_PROPERTY(QString fileName READ fileName NOTIFY fileUrlChanged)
  Q_PROPERTY(QString fileType READ fileType NOTIFY fileUrlChanged)
  Q_PROPERTY(QUrl fileUrl READ fileUrl NOTIFY fileUrlChanged)

  Q_PROPERTY(
      bool modified READ modified WRITE setModified NOTIFY modifiedChanged)

 public:
  explicit DocumentHandler(QObject *parent = nullptr);

  QQuickTextDocument *document() const;
  void setDocument(QQuickTextDocument *document);

  int cursorPosition() const;
  void setCursorPosition(int position);

  int selectionStart() const;
  void setSelectionStart(int position);

  int selectionEnd() const;
  void setSelectionEnd(int position);

  QString fontFamily() const;
  void setFontFamily(const QString &family);

  QColor textColor() const;
  void setTextColor(const QColor &color);

  Qt::Alignment alignment() const;
  void setAlignment(Qt::Alignment alignment);

  bool bold() const;
  void setBold(bool bold);

  bool italic() const;
  void setItalic(bool italic);

  bool underline() const;
  void setUnderline(bool underline);

  int fontSize() const;
  void setFontSize(int size);

  QString fileName() const;
  QString fileType() const;
  QUrl fileUrl() const;

  bool modified() const;
  void setModified(bool m);

 public Q_SLOTS:
  void load(const QUrl &fileUrl);
  void loadBuffer(QString str);
  void saveAs(const QUrl &fileUrl);
  void parsingLink(QString linkFile, QString qwName);
  void setBackDir(QString link);

 Q_SIGNALS:
  void documentChanged();
  void cursorPositionChanged();
  void selectionStartChanged();
  void selectionEndChanged();

  void fontFamilyChanged();
  void textColorChanged();
  void alignmentChanged();

  void boldChanged();
  void italicChanged();
  void underlineChanged();

  void fontSizeChanged();

  void textChanged();
  void fileUrlChanged();

  void loaded(const QString &text, int format);
  void error(const QString &message);

  void modifiedChanged();

 private:
  void reset();
  QTextCursor textCursor() const;
  QTextDocument *textDocument() const;
  void mergeFormatOnWordOrSelection(const QTextCharFormat &format);

  QQuickTextDocument *m_document;

  int m_cursorPosition;
  int m_selectionStart;
  int m_selectionEnd;

  QFont m_font;
  QUrl m_fileUrl;
};

#endif  // DOCUMENTHANDLER_H
